KMS of Research Center for Eco-Environmental Sciences， CAS
| Enhanced (OH)-O-center dot generation and pollutants removal by framework Cu doped LaAlO3/Al2O3 | |
Zhang, Xiao; Zhang, Lili ; Hu, Chun; Yang, Min
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| 2022-06-05 | |
| Source Publication | JOURNAL OF HAZARDOUS MATERIALS
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| ISSN | 0304-3894 |
| Volume | 431Issue:0Pages:128578 |
| Abstract | Highly dispersed framework Cu+/Cu2+ containing LaAlO3/Al2O3 (La-Cu-Al) was synthesized by a solid-liquid mixed sol-gel method. Excessive Al2O3 was confirmed to be necessary for the formation of LaAlO3. The NMR, EXAFS, FTIR and element mapping results revealed that Cu+/Cu2+ preferred to substitute octahedral Al sites and bonded by Cu-O-Al in the lattice of LaAlO3. Compared to La2CuO4, CuAl2O4 and other reported Fenton-like catalysts, La-Cu-Al was more efficient to mineralize refractory pollutants at a wide pH range of 4.0-10.0. More single electrons around Cu center and octahedral Cu+ were confirmed to be responsible for the effective reduction of H2O2 into powerful (OH)-O-center dot. Moreover, organic pollutants as electron donors could interact with surface Cu to accelerate Cu2+/Cu+ cycle and affect O-O bond of H2O2 on La-Cu-Al surface, further promoting the reduction of H2O2 into (OH)-O-center dot. These processes resulted in the high H2O2 utilization and the highly efficient removal of pollutants on La-Cu-Al. |
| Department | 中国科学院饮用水科学与技术重点实验室 ; 中国科学院饮用水科学与技术重点实验室 |
| Keyword | FENTON-LIKE DEGRADATION ORGANIC POLLUTANTS LAFEO3 PEROVSKITE BISPHENOL-A CATALYST OXIDATION STABILITY ALUMINA OXYGEN |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/47845 |
| Collection | 中国科学院饮用水科学与技术重点实验室 |
| Corresponding Author | Zhang, Lili |
| Affiliation | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 2.Guangzhou Univ, Minist Educ, Inst Environm Res Greater Bay, Key Lab Water Qual & Conservat Pearl River Delta, Guangzhou 510006, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Xiao,Zhang, Lili,Hu, Chun,et al. Enhanced (OH)-O-center dot generation and pollutants removal by framework Cu doped LaAlO3/Al2O3[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,431(0):128578. |
| APA | Zhang, Xiao,Zhang, Lili,Hu, Chun,&Yang, Min.(2022).Enhanced (OH)-O-center dot generation and pollutants removal by framework Cu doped LaAlO3/Al2O3.JOURNAL OF HAZARDOUS MATERIALS,431(0),128578. |
| MLA | Zhang, Xiao,et al."Enhanced (OH)-O-center dot generation and pollutants removal by framework Cu doped LaAlO3/Al2O3".JOURNAL OF HAZARDOUS MATERIALS 431.0(2022):128578. |
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| Enhanced •OH generat（5583KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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